Belt conveyor balance weight device convenient for introducing belt

Abstract

The utility model relates to a belt conveyor balance weight device convenient for introducing a belt. In order to overcome the defects in the prior art, the belt conveyor balance weight device convenient for introducing the belt comprises a balance weight room, two vertical guide rails and a roller are arranged in the balance weight room, a second square through hole is formed in a bottom plate of the balance weight room below the roller, a rectangular frame is embedded in the second square through hole, and the rectangular frame is connected with the vertical guide rails. A horizontal long roller is arranged on the side wall, close to the downstream reversing roller, of the rectangular frame, horizontal short rollers are arranged on the side walls of the two sides of the rectangular frame respectively, an outward turned edge is arranged on the upper edge of the rectangular frame, the rectangular frame is pressed on the edge of the second square through hole through the turned edge, and a reversing roller or a belt replacement guiding device is arranged on a window of the side wall of one side between the balance weights. The device further comprises a cover plate and a tractor, and the cover plate can cover the rectangular frame and the turned-over edges of the rectangular frame. The utility model has the advantages of simple structure, difficulty in scratching, no new belt twisting, firm connection and convenience in use, and is suitable for underground coal mines.

Description

TECHNICAL FIELD

[0001] The utility model relates to a belt conveyor weight falling device convenient for introducing belt. BACKGROUND

[0002] Chinese invention patent application CN 116873460 A published on October 13, 2023 discloses a belt conveyor belt replacement device. It includes: a first belt conveying part, the first belt conveying part includes a first belt and a belt disc assembly, the first end of the first belt is wound on the belt disc assembly; a second belt conveying part, the second belt conveying part includes a belt head, a belt tail and a second belt; a steel wire rope, the first end of the steel wire rope is connected with the second end of the second belt, and the second end of the steel wire rope is connected with an excavator. The first belt on the first belt conveying part is connected with the second belt of the second belt conveying part, the first end of the steel wire rope is connected with the second end of the second belt, the steel wire rope drives the second belt to separate from the second belt conveying part, and the second belt drives the first belt to enter the second belt conveying part from the first belt conveying part. In the device, the belt disc assembly and the excavator are both arranged on the ground, and the old belt is used to pull the new belt for laying and replacement. This method is convenient, labor-saving and suitable for use in open coal mines.

[0003] The belt conveyor in underground coal mines is arranged in a belt lane and a belt corridor. If the invention is used, the new belt arranged on the ground is difficult to enter the belt lane and the belt corridor. If the new belt is introduced through the window of the side wall of the belt corridor, the new belt is easy to be twisted and scratched. SUMMARY

[0004] The technical problem to be solved by the utility model is how to overcome the above-mentioned defects of the prior art and provide a belt conveyor weight falling device convenient for introducing belt.

[0005] To solve the above technical problems, the belt conveyor falling weight device for facilitating the introduction of the belt includes a falling weight room, which is arranged below the belt gallery. Two vertical guide rails and a roller are arranged in the falling weight room. The roller is sleeved on a central shaft, and the two ends of the central shaft are respectively and correspondingly arranged on the vertical guide rails and can move up and down along the vertical guide rails. A falling weight counterweight is hung on the central shaft. A first square hole is formed in the bottom plate of the belt gallery above the roller. An upstream reversing roller and a downstream reversing roller are arranged on the two sides of the first square hole. The lower layer belt of the belt conveyor extends into the square hole from above after passing through the upstream reversing roller, passes through the roller, and then extends out of the first square hole from above and passes through the downstream reversing roller. The falling weight room is characterized in that a second square hole is formed in the bottom plate of the falling weight room below the roller. A rectangular frame is embedded in the second square hole. A horizontal long roller is arranged on the side wall of the rectangular frame close to the downstream reversing roller. Horizontal short rollers are arranged on the two side walls of the rectangular frame. An outward flange is arranged on the upper edge of the rectangular frame and is pressed on the edge of the second square hole. A reversing roller or a belt replacement guide device is arranged on the side wall window of the falling weight room. The falling weight device further includes a cover plate and a tractor. The cover plate can cover the rectangular frame and the flange. The tractor can be a coal mine ground vehicle such as a forklift, a shovel or a fork truck.

[0006] When the belt conveyor is used normally, the cover plate covers the rectangular frame and the flange, and blocks the second square hole, facilitating the cleaning of the bottom plate of the belt gallery.

[0007] When the belt needs to be replaced, the new belt roll to be replaced and the tractor are moved to the ground below the falling weight room. Then, the belt conveyor is stopped, and the lower layer old belt is disconnected at a position close to the upstream reversing roller. Then, the cover plate is lifted, the end of the longer old belt (close to the downstream reversing roller) is passed through the rectangular frame in the second square hole, the end of the old belt is close to the new belt roll on the ground, and the end of the old belt and the end of the new belt are connected and fixed by a belt buckle. One end of a steel wire rope connected to the tail of the tractor is passed through the side wall window of the falling weight room and around the reversing roller or the belt replacement guide device on the window, and the other end of the steel wire rope is connected to the other end of the disconnected old belt. Then, the belt conveyor and the tractor are started at the same time, and the speeds of the two are consistent. The new belt is dragged to the belt conveyor under the guidance of the horizontal long roller and the horizontal short rollers on both sides. When the belt buckle appears in the falling weight room again, the old belt has completely separated from the rack of the belt conveyor. At this time, the old belt is removed, the new belt is connected and fixed together by the belt buckle or the vulcanization device after passing through the roller in the falling weight room, and the new belt can be put into use.

[0008] The temporary connection is fixed by the belt buckle, and the permanent connection is fixed by the vulcanization device, but the vulcanization time is long, and it takes one day to complete.

[0009] In this way, the new belt is not easy to be scratched and twisted during being pulled into the belt conveyor, and the old belt is not important even if it is scratched or twisted because it is to be discarded.

[0010] As an optimization, it further comprises a triangular connecting frame provided with a pressing plate, a plurality of through holes are formed in the pressing plate and the bottom plate of the triangular connecting frame, the end of the old belt to be replaced is clamped between the pressing plate and the bottom plate of the triangular connecting frame, the through holes in the pressing plate and the through holes in the bottom plate of the triangular connecting frame are opposite to each other, the end of the old belt to be replaced between each pair of opposite through holes is penetrated by a fastening screw, an ear nut is screwed on each fastening screw, and the top corner of the triangular connecting frame is connected with the towing vehicle through a steel wire rope.

[0011] The belt conveyor falling weight device for conveniently introducing a belt is simple in structure, not easy to scratch and twist the new belt, firm in connection, convenient to use, and suitable for use in underground coal mines. BRIEF DESCRIPTION OF DRAWINGS

[0012] The belt conveyor falling weight device for conveniently introducing a belt will be further described below with reference to the drawings:

[0013] Figure 1 is a perspective structural schematic view of a rectangular frame, a folded edge, a horizontal long roller and a horizontal short roller in the belt conveyor falling weight device for conveniently introducing a belt;

[0014] Figure 2 is a perspective structural schematic view of a triangular connecting frame, a pressing plate, a fastening screw, an ear nut and a steel wire rope in the belt conveyor falling weight device for conveniently introducing a belt in a use state;

[0015] Figure 3 is a daily state structural schematic view of the belt conveyor falling weight device for conveniently introducing a belt;

[0016] Figure 4 is a schematic view of replacing a belt of the belt conveyor falling weight device for conveniently introducing a belt.

[0017] In the diagram: 1 is the weight compartment, 2 is the roller, 3 is the central shaft, 4 is the weight counterweight, 5 is the bottom plate of the belt conveyor, 6 is the first square through hole, 7 is the upstream reversing roller, 8 is the downstream reversing roller, 9 is the lower belt of the belt conveyor, 10 is the second square through hole, 11 is the rectangular frame, 12 is the horizontal long roller, 13 is the horizontal short roller, 14 is the flange, 15 is the reversing roller, 16 is the cover plate, 17 is the tractor, 18 is the triangular connecting frame, 19 is the pressure plate, 20 is the old belt to be replaced, 21 is the fastening screw, 22 is the nut with lugs, 23 is the rope hole, 24 is the wire rope, 25 is the upper belt of the belt conveyor, 26 is the ground, 27 is the new belt roll, and 28 is the bottom plate of weight compartment 1. Detailed Implementation

[0018] Implementation method one: such as Figure 1 , 3 As shown in Figure 4, this belt conveyor weight device for easy belt introduction includes a weight compartment 1, which is located below the belt conveyor corridor. The weight compartment 1 contains two vertical guide rails (not shown) and a roller 2. The roller 2 is mounted on a central shaft 3, with each end of the central shaft 3 corresponding to one of the vertical guide rails and movable up and down along the guide rails. A weight counterweight 4 is also suspended on the central shaft 3. A first square through-hole 6 is opened on the bottom plate 5 of the belt conveyor corridor above the roller 2. An upstream reversing roller 7 and a downstream reversing roller 8 are respectively located on the upstream and downstream sides of the first square through-hole 6. The lower belt 9 of the belt conveyor passes over the upstream reversing roller 7 from above, passes downward through the first square through-hole 6, passes around the roller 2, and then passes upward again through the first square through-hole 6. The device passes over the downstream reversing roller 8 from above. Its features include: a second square through-hole 10 is provided on the bottom plate of the sinker compartment 1 below the roller 2; a rectangular frame 11 is embedded within the second square through-hole 10; a horizontal long roller 12 is provided on the side wall of the rectangular frame 11 near the downstream reversing roller 8; horizontal short rollers 13 are provided on both side walls of the rectangular frame 11; an outwardly flange 14 is provided on the upper edge of the rectangular frame 11; and the flange 14 presses against the bottom plate 28 of the sinker compartment 1 at the edge of the second square through-hole 10; a reversing roller 15 (or belt replacement guide device – see CN110092157A) is provided on a window on one side wall of the sinker compartment 1; it also includes a cover plate 16 and a tractor 17; the cover plate 16 can cover the rectangular frame 11 and its flange 14.

[0019] like Figure 2As shown, it further comprises a triangular connecting frame 18, which is provided with a pressing plate 19, a plurality of through holes are formed on the pressing plate 19 and the bottom plate of the triangular connecting frame 18, the end of the old belt 20 to be replaced is clamped between the pressing plate 19 and the bottom plate of the triangular connecting frame 18, the through holes on the pressing plate 19 and the through holes on the bottom plate of the triangular connecting frame 18 are one-to-one opposite, the end of the old belt to be replaced between each pair of opposite through holes is penetrated by a fastening screw 21, an ear nut 22 is screwed on each fastening screw 21, a rope penetrating hole 23 is formed on the top corner of the triangular connecting frame 18, and the rope penetrating hole 23 is connected with the traction vehicle 17 through a steel wire rope 24.

Claims

1. A belt conveyor weight device facilitating the introduction of a belt, comprising a weight compartment, which is arranged below a belt gallery, and two vertical guide rails and a drum arranged in the weight compartment, the drum being sleeved on a central shaft, the ends of the central shaft being arranged one by one on the vertical guide rails and being movable up and down along the vertical guide rails, and a weight counterweight being hung on the central shaft, a first square through hole being formed in the bottom plate of the belt gallery above the drum, an upstream reversing roller and a downstream reversing roller being arranged on the upstream and downstream sides of the first square through hole, respectively, and the lower layer belt of the belt conveyor passing from above the upstream reversing roller, passing downward through the first square through hole, passing around the drum, passing upward again through the first square through hole, and passing from above the downstream reversing roller, characterized in that: The upper of the bottom plate of the cylinder under the falling weight is provided with a second square through hole, a rectangular frame is embedded in the second square through hole, a horizontal long roller is arranged on the side wall of the rectangular frame close to the downstream reversing roller, horizontal short rollers are arranged on both sides of the side wall, an outward flange is arranged on the upper edge of the rectangular frame and is pressed on the edge of the second square through hole, a reversing roller or a belt replacement guide device is arranged on the window of the side wall of the falling weight, and the device further comprises a cover plate and a towing vehicle.

2. The belt conveyor drop weight device that facilitates the introduction of the belt of claim 1, characterized by: The triangular connecting frame is provided with a pressing plate, a plurality of through holes are arranged on the pressing plate and the bottom plate of the triangular connecting frame, the end of the old belt to be replaced is clamped between the pressing plate and the bottom plate of the triangular connecting frame, the through holes on the pressing plate and the through holes on the bottom plate of the triangular connecting frame are opposite to each other, the end of the old belt to be replaced between each pair of opposite through holes is penetrated by a fastening screw, an ear nut is arranged on each fastening screw, and the top corner of the triangular connecting frame is connected with the towing vehicle through a steel wire rope.

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